BIO 201 EXAM 2 RIO SALADO 2026/27 QUESTIONS AND ANSWERS 100% CORRECT

BIO 201 EXAM 2 RIO SALADO
2026/27 QUESTIONS AND ANSWERS
100% CORRECT
what is the only freely movable bone in the skull? - ANSWER-mandible

Why is the ____ the only freely moving bone in the skull? - ANSWER-Mandible;
connected to the rest of the skull by a freely moving joint

why are the first two cervical vertebrae assigned unique names? - ANSWER-have
NO intervertebral disc between them
highly modified

what are the first two cervical vertebrae named, C1 and C2 ? - ANSWER-C1= atlas
C2=axis

C1 has no ___ and no ___ ____ - ANSWER-no body
no spinous process

Axis has a body, spine, and other typical vertebral process, its only unusual feature
is what? - ANSWER-knoblike dens, or odontoid process.

frontal: forms ____
-contains ____ - ANSWER-sinuses

parietal: forms most of the ___ and ___ aspects of the skull - ANSWER-superior
lateral

occipital: forms ____ aspect and most of the ___ of the skull - ANSWER-posterior
base

temporal: has ____, ____, ____, and ____ regions - ANSWER-squamous
mastoid
tympanic
pestrous

sphenoid: keystone of the cranium. Main parts are the ____, ___ ___, ___ __ , and
pterygoid processes - ANSWER-body,
greater wings
lesser wings

Atlas (C1) allows you to do what with your head? - ANSWER-"carry" the skull
Allows you to nod "yes"

Axis allows you to do what with your head? - ANSWER-rotate it side to side saying
"no"